I looked at this model on line - virtual tour. It had an outlet on that long side wall leading to that space. The room behind the space is tub / shower - so no electric but the room behind the long wall is bedroom with outlets on that wall. So, I’d ask an electrician type if it’s doable to add plug ins in that back corner since there’s electric in that wall somewhere. If yes, then after move in, you could do the electric yourself - (hire eletrician) have a plug in for coffee with counter & cabinet & maybe open shelving above added by builder or you pre move in.

Look-wise though, you don't think cabinets would seem off? If we're unable to put electric there, I'd use that cabinet space for hiding the trash cans

I don’t think it would look too bad but yes, might raise questions about why the pantry isn’t in the corner instead of breaking up what otherwise would be a long counter. From a looks standpoint, I’d think about adding the base cabinet & counter & have open shelving above instead of an upper cabinet. I think that would give more use options. A set up for wine bar or even just more storage with bottom cab for infrequently used items & display above on the shelves. I wouldn’t use for trash storage - too far away from area where trash generated at the sink clean up and the prep areas. Won’t want to be walking over with messy trash or constantly dragging trash can across kitchen. Look on line at this Nettleton model - the one I looked at had open shelving there & was different than the picture you posted. Seeing the other options might help you visualize the open shelving

I don't think it would look odd as long as the cabinets are the same color as the others. But to lighten it up, I agree about the open shelving above, instead of more cabinets. It seems sort of crazy that there isn't already electricity on that long wall. Code these days seems to have outlets everywhere. Where will your MW go?

Instead of cabinets, I would look for a piece of furniture. Either a sideboard or hutch or a bakers rack, or a kitchen cart or even a cool old table to fit the space.

At the very least that area should have outlets or the pantry should continue all the way to the left.

As a cabinet guy, I would hace cabinetry on that entire wall.

Can you have him not put in the pantry? Then after you move in you could add a reach in pantry the full width designed how you would like it.

Then you could add more cabinets / counter / pantry pullouts later if you can match the cabinets and counters

Actually you could do them in a totally different color or wood and have it look elegant.

I never considered just making it all one big pantry, I like that idea